what happens when the Heroes of Olympus(Percy, Annabeth, Frank, Hazel, Leo, Thalia, Jason, Piper, and Nico) Cast meets the Soul Eater Cast(Soul, Crona, Death the Kid, Liz, Patti, Black*Star, Tsubaki, and Maka)? (OC: Ghost Blade & Night-Raven Angel a.k.a Alex and Zwen)